Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full burden. It discloses the concrete state change ("sets status to 'archived'"), the reversibility of the operation, and that the updated tracker is returned. It does not mention permission/auth requirements, side effects on the tracker's linked transactions or lines, or any rate limits.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Three short sentences, front-loaded with the action, then the parameter mechanic, then the return value. Efficient overall, though the isArchived explanation partially duplicates what the schema already states.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a two-parameter toggle with no output schema, the description is nearly sufficient: it covers the operation, the boolean meaning, and the returned value. It omits the side-effect scope (what archiving does to associated transactions/lines) and any auth context, which would round it out.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, and both parameters already document themselves (trackerId = ID of the tracker, isArchived = true to archive / false to restore). The description's restatement of the isArchived semantics adds no meaning beyond the schema, so the baseline of 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb pair and resource: "Archive or unarchive a tracker." An agent immediately knows this is a reversible state toggle on a tracker, not a delete. However, it never names or distinguishes itself from close siblings such as delete_tracker, update_tracker, or archive_account, which is what a 5 would require.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is implied through the boolean semantics (true = archive, false = restore), which is enough to invoke the tool, but there is no guidance on when to prefer this over delete_tracker or update_tracker, and no prerequisites or exclusions are stated.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.